Enhanced intravaginal devices
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United States of America Patent
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-
Aug 17, 2004
Grant Date -
Oct 11, 2001
app pub date -
Dec 5, 2000
filing date -
Jun 5, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A biodegradable intra vaginal device for insertion into the vagina of an animal (eg; cattle) useful for herd oestrus synchrony purposes, the device is intra vaginally insertable, intra vaginally retainable and withdrawable by virtue of its ability to change its geometry yet is formed at least almost exclusively from a cyclodextrin and progesterone impregnated moulded matrix of a polyester polymer (eg; poly (.epsilon.-caprolactone)) or a starch-like polysaccharide polymer. There is preferably a loading of progesterone of from 0.1 to 3 gms. The surface area of the impregnated matrix is preferably from 15 to 200 cm.sup.2. Related methods and uses also form part of the invention.
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Family
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